Sewing-machine.



0. H. GUHL.

SEWING MACHINE.

APPLICATIONV FILED MAR. 23. 1915.

Patented. May16,1916.

magma OSWALD RICHARD GUI-IL, 0F HAMBURG, GERMANY.

SEWING-MACHINE.

Application led March 23, 1915.

T0 all whom it may concern Be it known that I, OswALD RICHARD GUHL, a citizen of the German Empire, re-` siding at Hamburg, Germany, have invented cert-ain new and useful Improvements in Sewing-Vlachinea of which the following is a specification.

The present invention refers to sewing machines and more particularly to sewing machines with drop head that is to say, to machines in which the table is provided with a movable platform carrying the sewing machine head, which platform is constructed to be lowered down or swing about a pivot in a vertical plane. Sewing machines of this description generally are provided below the top of the table with a casing or an upturned cover which protects the head Vfrom being damaged or smutted by dust or the like, when the head is lowered down. To avoid this casing being in the way of the knees of the stitcher it was made heretofore in sections of which those that might j be in the way are turned down or removed in any other manner. The space allowed for the knees of the stitcher by such sectional casings is insuiiicient because the iXed side walls of the casing are still obstacles. The costs for manufacturing such casings are very considerable on account of the multiplicity of its parts, which also become easily warped and cause jamming, when being opened or closed.

According to the present invention the protecting casing is constructed to be Slidable as a whole. It is therefore only necessary to push the casing aside to give free head room on the under side of the top plate of the table, and thus there is suflicient room for the knees above the same as well as sidewise.

Since such a casing forms an unchangeable body in its working position as well as in its not working position it can be constructed in smallest possible size and may be given the shape of a simple trough. Moreover it can be constructed very light without fear of reducing its strength for instance it can be made from veneer and for this reason the costs which are small on account of the simplicity may be stillreduced.

In the drawing the upper part of a sewing machine table is shown by way of Vexample.

Figure 1 is a sectional elevation in the Specification of Letters Patent.

Patented May f6, 19116.

Serial No. 16,437'.

working position, and Fig. 2 is the nonworking position of the machine. Fig. 3 is a sectional elevation drawn at right angles to Fig. 2.

The sewing machine head o' is attached to the base plate or framing Z), which is attached to apart c of the top plate in the plane of the latter, Fig. l. The projecting casing CZ is held below the top plate between two rigid guides c which allow of a sliding motion of the casing transversally to the table, so that the casing Z can be shifted from the position Fig. 2 into the position Fig. l when the head a is raised into its working position Fig. l. Thereby the space occupied by the knees of the stitcher is fully free and gives perfect freedom to the knees both vertically as well as sidewise.

Vhen the head a is to be lowered below the level of the top plate the casing Z is drawn forward either by hand or automatically by the descending head. The frame ZJ in the case strikes against ledges f fastened to the inside of the casing and by its weight the head will be adjusted into such position, in which the opening in the top plate should be closed by the slidable part g. Therefore there is no necessity to take care of an exact adjustment of the casing by hand or complicated means used heretofore into the position in which it is adjusted to receive the head. The construction and dimensioning of the top plate can be chosen at will. l

It makes no difference, whether the protecting casing is made movable in longitudinal direction ord in transversal direction, that is to say, whether it can be moved backward o1' sideward. Any known means may be used for shifting the casing out of the way.

I claim:

l. In combination with a drop head Sewing machine, a top plate to which the ma chine head is pivoted, a casing adapted to protect the sewing machine head in its lowered position, guides below the top plate of the sewing machine in which guides the casing is adapted to slide backward.

2. In combination with a drop head sewing machine, a casing adapted to protect the sewing machine head in its lowered position and adapted to be moved out of the way of the knees of the stitcher in working position of the head, a base-plate carlying the head and pivoted to the table and adapted to position the casing, when dropped below the top of the table.

3. In combination with a drop head sewing machine, a casing adapted to protect the sewing machine head in its lowered. position and adapted to be moved bodily out of the way of the knees of the stitcher in working position of the head, a baseplate cari-ying the head and pivoted to the table, ledges on the inside of the casing constructed to be engaged by the base-plate on the head when lowered below the top of the table to position the casing.

4f. In combination with a drophead sewing machine, a top plate to which the machine head is pivoted, a casing adapted to protect the sewing machine head in its lowered position, guides below the top plate of the sewing machine in which guides the easing is adapted to slide from beneath tlfe top plate when the head is in operative position, said casing being adapted to slide independently of movement of the head.

5. In combination with a drop head sewing machine having a top plate, a casing movably supported by the top plate to move independently of the head and adapted to protect the latter in its lowered position, said casing as movably supported being adapted to be moved bodily with respect to the top plate, as and for the purposes speciied.

OSWALD RICHARD GUHL.

' Witnesses:

F. A. MAX KAEMPFF, FRANCIS R. STEWART.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, 2Dt C. 

